Sanken 2SD91 Original New Silicon NPN Transistor – D91, For Audio & Power Applications

If you're into repairing or building audio gear, power supplies, or any electronics that need a solid NPN transistor, this Sanken 2SD91 is a great find.

It's an original, brand new old stock part from Sanken, a trusted name in semiconductors.

The MPN is 2SD91, sometimes just called D91.

It's a silicon NPN transistor, commonly used in amplifier output stages and other linear applications.

Comes in its original packaging, unused and undamaged.

Whether you're restoring a vintage amp or fixing a piece of test equipment, having genuine Sanken parts makes a difference in sound and reliability.

Dalbani item number is also 2SD91 if you're cross-referencing.

No UPC, but that's fine for components like this.

Good, solid, authentic part.